Simulation of an integrated PCM-wallboard system

Kim, J.-S.; Darkwa, K

doi:10.1002/er.869

Cited by 57 publications

(22 citation statements)

References 4 publications

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“…The phase change materials in building products can store significant amounts of thermal energy without large structural mass associated with sensible heat storage [5]. The integration of the PCMs into building fabrics has been investigated as a potential technology for minimizing energy consumptions in buildings [6]. Many inorganic and organic PCMs (salt hydrates, fatty acids/esters, paraffins, polyethylene, glycol, etc.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Characteristics of Polyethylene Glycol/Cement Composites as Thermal Energy Storage Materials

Fang

2010

Chem Eng & Technol

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The polyethylene glycol/cement composites as thermal energy storage materials were prepared by blending polyethylene glycol and cement. In composite materials, polyethylene glycol (PEG) is used as the phase change material for thermal energy storage and cement acts as the supporting material. A Fourier transformation infrared spectroscope (FT-IR), x-ray diffractometer (XRD), and scanning electronic microscope (SEM) were used to determine the chemical structure, the crystalloid phase, and microstructure of the polyethylene glycol/cement composites, respectively. The thermal properties and thermal stability were investigated by a differential scanning calorimeter (DSC) and a thermogravimetry analyzer (TGA). The SEM results showed that the polyethylene glycol was well dispersed in the porous network of the cement.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Characteristics of Polyethylene Glycol/Cement Composites as Thermal Energy Storage Materials

Fang

2010

Chem Eng & Technol

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“…* At the optimum time period the laminated board released about 27% more latent heat than the randomly distributed type as against 20-50% in previous theoretical investigation by Kim and Darkwa (2003).…”

Section: Experimental and Numerical Analysismentioning

confidence: 89%

Dynamics of energy storage in phase change drywall systems

Darkwa

Kim

2005

Int. J. Energy Res.

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SUMMARYExperimental evaluations of manufactured samples of laminated and randomly mixed phase change material (PCM) drywalls have been carried out and compared with numerical results. The analysis showed that the laminated PCM drywall performed thermally better. Even though there was a maximum 3% deviation of the average experimental result from the numerical values, the laminated PCM board achieved about 55% of the phase change process as against 48% for the randomly distributed drywall sample. The laminated board sample also released about 27% more latent heat than the randomly distributed type at the optimum time of 90 min thus validating previous simulation study. Given the experimental conditions and assumptions the experiment has proved that it is feasible to develop the laminated PCM technique for enhancing and minimising multi-dimensional heat transfers in drywall systems. Further practical developments are however encouraged to improve the overall level of heat transfer.

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“…The methods of integrating PCM into envelopes, identified in the literature, are the direct method "immersion" and indirect method "attachment" [17] (as represented in Figure 3). Much work has been developed in recent years on insulation [19,20], and thermal inertia [21][22][23]. A number of researchers have proposed the inclusion of PCM to replace the masonry walls in passive walls [24,25], the active walls [26] and hybrid [27,28] with the aim of constituting optimal visions on improving the energy and thermal performance of buildings.…”

Section: Around the Walls Of Buildingsmentioning

confidence: 99%

Phase Change Materials for Building Applications: A Thorough Review and New Perspectives

2018

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Abstract:The purpose of this paper is to provide a comprehensive report on the state of the art on the technologies used in the modeling of energy storage systems by latent heat in buildings, and draw lines on perspectives on the technology evolution in this sector. In the first part, the emphasis is put mainly on the two main lines of research: experimental and numerical. In the second part, the main trends of research in this sector have been followed. An anatomical operation of more than 100 documents (published between 2006 and 2016), on the behavior of storage systems integrating Phase Change Materials (PCM), covering a large number of configurations treatment and their applications in thermal comfort of buildings area, has shown that the information published in this topic are very diverse and enormous, but in many cases are insufficient. The results show that, with suitable design, the PCM can contribute to the reduction of costs and achieve energy reductions in buildings, guaranteeing a comfortable interior environment. The evaluation of this multitude of documents gave the following remark: The effectiveness of any proposed approach to a numerical study is a concept with ambiguities, depending upon the method used, its precision, the problem to be modeled, the convergence criteria and the input parameters choice. The diversity of experimental conditions and the variety of results revealed that the published works are not directly comparable.

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Simulation of an integrated PCM-wallboard system

Cited by 57 publications

References 4 publications

Experimental Investigation on the Characteristics of Polyethylene Glycol/Cement Composites as Thermal Energy Storage Materials

Experimental Investigation on the Characteristics of Polyethylene Glycol/Cement Composites as Thermal Energy Storage Materials

Dynamics of energy storage in phase change drywall systems

Phase Change Materials for Building Applications: A Thorough Review and New Perspectives

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